Steve Witkoff, a real estate mogul and close friend of Donald Trump, has been tasked with brokering peace in Ukraine. Initially named as Trump's Middle East envoy, Witkoff has been involved in negotiations with Russia about ending the war in Ukraine. He recently traveled to Moscow to discuss diplomatic proposals with Russian President Vladimir Putin. Witkoff's role in the US president's cabinet and his close relationship with Trump make him an important figure in the US's efforts to navigate peace between Russia and Ukraine.